Test Overview
Test Methodology

Flow Cytometry

Test Usage

Approximately 40% of patients with chronic urticaria have antibodies to the high affinity IgE receptor (FceR1). Sera from patients with chronic urticaria significantly upregulate basophil CD203c expression as measured by flow cytometry.

Reference Range *

0 - 12

Test Details
Update Type: Replacement Test
Test Updated: 12/08/2021
Days Set Up
Monday, Thursday
Analytic Time

7 - 15 days

Soft Order Code
FIERA
Synonyms
  • Anti-CD203
  • CD203 Antibody
  • Anti-FcER1 Antibody
Laboratory
Sendout
Reference Laboratory
Mayo FIERA (National Jewish Health)
Section
Special Testing
Specimen Requirements
Collection Instructions

Collect specimen in a red top tube. Centrifuge, aliquot serum into a plastic vial within 1 hour of collection and refrigerate up to 7 days or freeze for longer storage.

Red Top Tube
Normal Volume
1 mL serum
Minimum Volume
0.5 mL serum
Additional Information

Test sent to Mayo Medical Laboratories; performed by National Jewish Health.

Billing
CPT Code
88184, 88185 x2
Fee Code
AA549, AA550 x2
NY State Approved
No